Control valve

ABSTRACT

Disclosed is a control valve. The control valve comprises a sealing member, and the sealing member comprises an elastic pad and a sealing piece which have an integral structure. The control valve is provided with a rotation suppression portion, the rotation suppression portion is integrally formed with or fixedly connected to or in position-limiting connection with the inner surface of a valve body member, and the rotation suppression portion works in conjunction with the sealing member, so as to prevent the elastic pad from rotating with respect to a side wall portion and prevent movement of the sealing member with respect to the side wall portion.

This disclosure claims the priority to Chinese Patent Application No.202110065261.1, titled “VALVE DEVICE”, filed with the China NationalIntellectual Property Administration on Jan. 18, 2021, the entiredisclosure of which is incorporated herein by reference.

FIELD

The present disclosure relates to the technical field of fluid control,and in particular to a control valve.

BACKGROUND

Some systems need to use a multi-passage control valve to control a flowpath. For example, a motor vehicle may generally have multiple controlvalves in order to conduct controlling at present. In a multi-passagecontrol valve, a sealing member and an elastic pad with separatestructures are used for realizing sealing and sliding-fit with a valvecore.

SUMMARY

In order to provide a control valve, the following technical solution isprovided according to the present disclosure:

-   -   a control valve includes a valve body component and a valve core        component, the control valve has a valve chamber, at least most        of the valve core component is located in the valve chamber, the        valve core component is driven to be rotatable; the valve body        component includes a side wall portion, the side wall portion is        a peripheral wall or at least a part of the peripheral wall of        the valve chamber, the valve body component is provided with a        communication hole, the control valve further includes a sealing        component, the sealing component is located between the side        wall portion and the valve core component, the sealing component        includes an elastic pad and a sealing member, the elastic pad        and the sealing member are fixed to form an integral structure,        the elastic pad is located between the sealing member and the        side wall portion of the valve body component, the sealing        member is in contact with the valve core component, a surface of        the sealing member in contact with the valve core component is        smoother than a surface of the elastic pad in contact with the        side wall portion, the control valve has a rotation suppression        portion, the rotation suppression portion is integrally formed        with or fixedly connected to or in position-limiting connection        with an inner surface of the valve body component, and the        rotation suppression portion is fitted with the sealing        component to limit the sealing component from rotating clockwise        or counterclockwise relative to the valve body component.

In this case, the sealing member of the control valve includes theelastic pad and the sealing member which have the integral structure,the surface of the sealing member in contact with the valve corecomponent is smoother than the surface of the elastic pad in contactwith the side wall portion, the control valve is provided with therotation suppression portion, the rotation suppression portion isintegrally formed with or fixedly connected to or in position-limitingconnection with the inner surface of the valve body component, and therotation suppression portion is fitted with the sealing member, so as tolimit the sealing component from rotating clockwise or counterclockwiserelative to the valve body component, limit the elastic pad fromrotating relative to the side wall portion, and prevent the sealingcomponent from moving relative to the side wall portion, which has asimple structure and facilitates of assembling.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic exploded view of a control valve according to thepresent disclosure;

FIG. 2 is a schematic perspective view of a sealing component accordingto a first embodiment of the present disclosure;

FIG. 3 is a schematic perspective view of a valve body componentaccording to the first embodiment of the present disclosure;

FIG. 4 is a schematic partially cross-sectional view of the valve bodycomponent in FIG. 3 ;

FIG. 5 is a schematic partially enlarged view of the portion I in FIG. 4;

FIG. 6 is a schematic partially cross-sectional view of the sealingcomponent in FIG. 2 ;

FIG. 7 is a schematic perspective view of the sealing componentaccording to a second embodiment of the present disclosure;

FIG. 8 is a schematic perspective view of the valve body componentaccording to the second embodiment of the present disclosure; and

FIG. 9 is a schematic perspective view of a cover of the control valveaccording to the present disclosure.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The technical solution is described below in conjunction with specificembodiments. As shown in FIG. 1 to FIG. 5 , a control valve 200 includesa valve body component 10, a valve core component 20, a driving box 30,and a sealing component 40. The control valve has a valve chamber 102,the valve core component 20 is rotatable driven by a driving member inthe driving box, for example, the driving member may be a motor or amotor and a reduction gear set. The valve body component 10 includes aside wall portion 12 and a cover 50, and the side wall portion 12 isfixedly connected to the cover 50. The side wall portion 12 is aperipheral wall or at least a part of the peripheral wall of the valvechamber, the valve body component 10 has a communication hole 101, andmultiple communication holes 101 may be provided. For example, in thisembodiment, five communication holes 101 are provided, alternatively,greater than or less than five communication holes 101 can be provided.The sealing component 40 is located between the side wall portion 12 andthe valve core component 20; the sealing component 40 includes anelastic pad 41 and a sealing member 42, the elastic pad 41 is fixedlyconnected to the sealing member 42, the elastic pad 41 is locatedbetween the sealing member 42 and the side wall portion 12 of the valvebody component 10, the sealing member 4 is in contact with the valvecore component 20, a surface of the sealing member in contact with thevalve core component is smoother than a surface of the elastic pad incontact with the side wall portion, the control valve has a rotationsuppression portion, the rotation suppression portion is integrallyformed with or fixedly connected to or in position-limiting connectionwith an inner surface of the valve body component, and the rotationsuppression portion is fitted with the sealing component to limit thesealing component from rotating clockwise or counterclockwise relativeto the valve body component. The acting force between the sealing member42 and the valve core component 20 includes sliding friction force, andthe acting force between the elastic pad 41 and the side wall portion 12is static friction force. The rotation suppression portion can limit thesealing component 40 from rotating relative to the side wall portion 12.The elastic pad 41 and the sealing member 42 may be fixed together byadhesion. The sealing member 42 may be made of Teflon, and the sealingmember 42 can be not only used for sealing, but also has a certainlubricating performance, which can reduce the friction between the valvecore component and the sealing component, thereby reducing the drivingforce of the control valve.

As shown in FIG. 2 , the elastic pad 41 has a first through holes 411, afirst recessed groove 412 and a second recessed groove 413, the firstthrough holes 411 are in communication with the communication holes 101,openings of the first recessed grooves 412 and the second recessedgrooves 413 are configured toward the side wall portion 12. The firstrecessed groove 412 may extend from one end of the elastic pad 41 to theother end of the elastic pad 41 in a longitudinal direction of theelastic pad 41, and multiple first recessed grooves 412 are provided. Inthis embodiment, the first recessed grooves 412 are distributed on twosides of the first through hole 411, and the first recessed groove 412located between two adjacent first through holes 411 may be located inthe middle of a portion located between the two adjacent first throughholes 411. The first recessed grooves 412 may be arranged axially, thesecond recessed grooves 413 may be arranged circumferentially or inother form, and an expansion space for the elastic pad 41 may be formedby the second recessed grooves 413 when the elastic pad 41 is compressedunder force. In this embodiment, the second recessed grooves 413 arelocated on at least one side of the elastic pad 41 in the longitudinaldirection of the elastic pad 41, and the first recessed grooves 412 arein communication with the second recessed grooves 413.

As shown in FIG. 3 , the valve body component 10 includes protrudingribs 123 which protrude from the side wall portion 12. In thisembodiment, the protruding ribs 123 protrude from the side wall portion12.

The number of the protruding ribs 123 corresponds to the number of thefirst recessed grooves 412, each protruding rib 123 is inserted into thecorresponding first recessed groove 412, and the protruding rib 123 isin interference fit with the corresponding first recessed groove 412.The arrangement of the protruding ribs 123 and the first recessedgrooves 412 can realize the positioning and mounting of the sealingcomponent 40, so that the positions of the first through holes 411correspond to those of the communication holes 101 to communicate thefluid. In addition, the fitting manner between the protruding ribs 123and the first recessed grooves 412 can limit a position of the sealingcomponent 40, and prevent the sealing component 40 from moving when thevalve core component rotates. In this embodiment, the rotationsuppression portion includes the protruding ribs 123 and the firstrecessed grooves 412. In this embodiment, a height of the protrudingribs 123 protruding from the side wall portion 12 is less than a depthof the first recessed grooves 412, so that a certain gap is formedbetween the protruding rib 123 and a bottom of the first recessed groove412. In this way, the elastic pad 41 abuts against the side wall portion12, and an expansion space for the elastic deformation generated by theelastic pad can be reserved by the gaps formed between the protrudingribs 123 and the bottom of the first recessed grooves 412.

As shown in FIG. 3 to FIG. 5 , the valve body component 10 furtherincludes a bottom wall 11 and boss portions 124, the bottom wall 11 isintegrally formed with the side wall portion 12, and the boss portions124 protrude from the bottom wall 11. Each boss portion 124 includes ablocking portion 125 and a first supporting portion 126, the blockingportion 125 protrudes from the first supporting portion 126 by a setdistance, at least part of the first supporting portion 126 is locatedbetween the protruding rib 123 and the blocking portion 125, and aposition-limiting space 127 is formed between the blocking portion 125and the protruding rib 123. After the sealing component 40 is mounted inthe valve body component 10, one end of the sealing component 40 isaccommodated in the position-limiting space 127. The sealing component40 has first notch portions 46, the first notch portions 46 are locatedin an end surface of the sealing component and extend toward an interiorof the sealing component 40, and the first supporting portion 126 isinserted into the corresponding first notch portion 46 and abuts againstthe sealing component 40. The arrangement of the boss portions 124 canlimit a position of the end of the sealing component 40, and prevent theend of the sealing component 40 from being separated from the valve bodycomponent 10. The rotation suppression portion can further include thatthe first supporting portion 126 is inserted into the correspondingfirst notch portion 46 and abuts against the sealing component 40.

As shown in FIG. 2 and FIG. 6 , the sealing member 42 includesposition-limiting portions 422, a fitting portion 423, a hemming portion424 and a connecting portion 425, the fitting portion 423 is in slidingfit with the valve core component 20, the two position-limiting portions422 are located on two sides of the sealing member 42 in acircumferential direction of the sealing member 42, and eachposition-limiting portion 422 has an outward protruding structure or abending structure, which can further limit the position of the two sidesof the elastic pad 41, so as to limit the deformation range of theelastic pad 41 after extrusion. In this embodiment, since theposition-limiting fit manner between the protruding ribs 123 and thefirst recessed grooves 412 is provided, the position-limiting portions422 are located on two sides of the elastic pad 41, and a height of theposition-limiting portions is less than a thickness of the two sides ofthe elastic pad, so that the expansion space for the elastic pad 41 canbe formed. As shown in FIG. 3 , the valve body component 10 has a stopportion 128, the stop portion 128 protrudes from the side wall portion12 and is inserted into the valve chamber 102, and the position-limitingportions 422 are in contact with a side surface of the stop portion 128.The position-limiting portions 422 are in contact with the side surfaceof the stop portion 128 within the elastic range of the sealingcomponent, which can limit the sealing component from rotating relativeto the valve body component. The rotation suppression portion canfurther include that the position-limiting portions 422 are in contactthe side surface of the stop portion 128.

A second through hole 421 is formed in the hemming portion 424, and atleast a part of the hemming portion 424 is inserted into the firstthrough hole 411 and is fixed to an inner wall of the first through hole411 by adhesion, so that the first through hole 411 is in communicationwith the second through hole 421. A height of the hemming portion 424 isless than a length of the first through hole 411, so that the sealingmember 42 can be prevented from contacting a second side wall portion122 when the elastic pad 41 is compressed, thus the elastic pad 41 canhave greater compression space.

In this embodiment, on one hand, the arrangement of the hemming portion424 increases a contact area between the elastic pad 41 and the sealingmember 42 and improves the adhesive force between the elastic pad 41 andthe sealing member 42, on the other hand, the hemming portion 424 isinserted into the first through hole 411 so as to limit the position ofthe sealing member 42 and the elastic pad 41, and prevent the seal 42and the elastic gasket 41 from being misplaced when the valve corecomponent rotates.

The connecting portion 425 is located between the hemming portion 424and the fitting portion 423, and the hemming portion 424 is roundingconnected to the fitting portion 423 by the connecting portion 425. Inthis embodiment, a diameter of a connection position of the connectingportion 425 with the fitting portion 423 gradually increases in adirection toward the valve core component, and the connecting portion425 can be used for buffering and guiding during the rotation of thevalve core component.

Referring to FIG. 1 , FIG. 3 , FIG. 4 , FIG. 8 and FIG. 9 , the valvebody component 10 is provided with a first valve core supporting portion1101 and a second valve core supporting portion 1102, the first valvecore supporting portion 1101 protrudes from the bottom wall, the secondvalve core supporting portion 1102 protrudes from an end surface of thecover 50, a part of the valve core component 20 is inserted into thefirst valve core supporting portion 1101, another part of the valve corecomponent 20 is inserted into the second valve core supporting portion1102, and the valve core component 20 is rotatably supported on thefirst valve core supporting portion 1101 and the second valve coresupporting portion 1102; the first valve core supporting portion 1101and the second valve core supporting portion 1102 both include a notchportion and a rib plate portion. Taking the second valve core supportingportion 1102 as an example, the second valve core supporting portion1102 includes notch portions 112 and a rib plate portions 113, theimpurities in the coolant entering the fitting portion 111 can bedischarged in time by the arrangement of the notch portions 112 so as toprevent the valve core component from being stuck. The arrangement ofthe rib plate portions 113 can improve the strength of the second valvecore supporting portion 1102 and reduce the influence of the notchportions 112 on the strength of the second valve core supporting portion1102. In addition, a height of the second valve core supporting portion1102 is greater than or equal to a height of the boss portion 124, whichcan reduce the friction of the valve core component. In addition, theboss portions 124 can prevent the sealing component 40 from beingseparated from the valve body component 10 when it is compressed anddeformed.

The cover 50 further includes a second supporting portions 51, an endsurface of the sealing component 40 is provided with the first notchportions 46, another end surface of the sealing component 40 is providedwith second notch portions 47, the first supporting portion 126 isinserted into the corresponding first notch portion 46 and abuts againstthe sealing component 40, the second supporting portion 51 is insertedinto the corresponding second notch portion 47 and abuts against thesealing component 40, so as to further limit the position of the sealingcomponent 40.

FIG. 7 is a schematic perspective view of the sealing componentaccording to a second embodiment of the present disclosure; comparedwith the first embodiment, the main difference is that: the sealingcomponent 40 is not provided with the first recessed grooves 412. FIG. 8is a schematic perspective view of the valve body component according tothe second embodiment of the present disclosure; compared with the firstembodiment, the main difference is that: the protruding ribs 123 are notprovided. Referring to FIG. 7 and FIG. 8 , the sealing component 40 isarranged in an inner chamber of the valve body component, theposition-limiting portions 422 of the sealing component are in contactwith the side surface of the stop portion 128; the position-limitingportions 422 of the sealing component are in contact with the sidesurface of the stop portion 128 within the elastic range of the sealingcomponent, which can limit the sealing component from rotating relativeto the valve body component, thereby simplifying the structure andreducing the difficulty of assembly compared with the first embodiment.Other similar arrangements are not repeated.

In addition, in some embodiments, the first notch portions 46 and thesecond notch portions 47 may not be provided, and the first supportingportions 126 and the second supporting portions 51 are not providedaccordingly, which can further simplify the structure and reduce thedifficulty of assembly.

It should be noted that although the present application has beendescribed herein in detail with reference to the above embodiments,those of ordinary skill in the art should understand that those skilledin the art may still modify or equivalently replace the presentapplication, and all technical solutions and its improvements that donot apart from the spirit and scope of the present application should becovered by the scope of the claims of the present application.

1. A control valve, comprising a valve body component and a valve corecomponent, wherein the control valve has a valve chamber, at least mostof the valve core component is located in the valve chamber, the valvecore component is driven to be rotatable; the valve body componentcomprises a side wall portion, the side wall portion is a peripheralwall or at least a part of the peripheral wall of the valve chamber, thevalve body component is provided with a communication hole, wherein thecontrol valve further comprises a sealing component, the sealingcomponent is located between the side wall portion and the valve corecomponent, the sealing component comprises an elastic pad and a sealingmember, the elastic pad and the sealing member are fixed to form anintegral structure, the elastic pad is located between the sealingmember and the side wall portion of the valve body component, thesealing member is in contact with the valve core component, a surface ofthe sealing member in contact with the valve core component is smootherthan a surface of the elastic pad in contact with the side wall portion,the control valve has a rotation suppression portion, the rotationsuppression portion is integrally formed with or fixedly connected to orin position-limiting connection with an inner surface of the valve bodycomponent, and the rotation suppression portion is fitted with thesealing component to limit the sealing component from rotating clockwiseor counterclockwise relative to the valve body component.
 2. The controlvalve according to claim 1, wherein the sealing member is fixedlyconnected to the elastic pad, the sealing member comprises a hemmingportion and a fitting portion, the fitting portion is arranged towardthe valve core component and is in sliding fit with the valve corecomponent, the elastic pad has a first through hole, the first throughhole is in communication with the communication hole, the sealing memberfurther has a second through hole, the second through hole is incommunication with the communication hole through the first throughhole, the second through hole is formed in the hemming portion, at leasta part of the hemming portion is inserted into the first through holeand is fixed to an inner wall of the first through hole by adhesion, anda height of the hemming portion is less than a length of the firstthrough hole.
 3. The control valve according to claim 2, wherein thesealing member comprises at least two position-limiting portions locatedon two sides of the sealing member, each position-limiting portion hasan outward protruding structure or a bending structure, theposition-limiting portions are located on two sides of the elastic pad,and a height of the position-limiting portions is less than a thicknessof the two sides of the elastic pad; the valve body component has a stopportion, the stop portion is arranged to protrude from the side wallportion and is inserted into the valve chamber, and theposition-limiting portions are in contact with a side surface of thestop portion.
 4. The control valve according to claim 3, wherein thesealing member further comprises a connecting portion, the connectingportion is located between the hemming portion and the fitting portion,the hemming portion is rounding connected to the fitting portion by theconnecting portion, and a diameter of a connection position of theconnecting portion with the fitting portion gradually increases in adirection toward the valve core component.
 5. The control valveaccording to claim 1, wherein the elastic pad has a first recessedgroove which extends axially, the valve body component has a protrudingrib that protrudes from the side wall portion, the protruding rib isinserted into the first recessed groove, and a height of the protrudingrib protruding from the side wall portion is less than a depth of thefirst recessed groove.
 6. The control valve according to claim 5,wherein the elastic pad has a first through hole, the first recessedgroove extends from one end of the elastic pad to the other end of theelastic pad in a longitudinal direction of the elastic pad, wherein aplurality of first recessed grooves are provided, the first recessedgrooves are distributed on two sides of the first through hole, and theprotruding rib is in interference fit with the corresponding firstrecessed groove.
 7. The control valve according to claim 6, wherein thevalve body component further comprises a bottom wall and a boss portion,the bottom wall is integrally formed with the side wall portion, theboss portion protrudes from the bottom wall and extends toward the valvechamber, the boss portion comprises a blocking portion and a firstsupporting portion, the blocking portion protrudes from the firstsupporting portion by a set distance, wherein the first supportingportion is located between the protruding rib and the blocking portion,the protruding rib is connected to the first supporting portion, aposition-limiting space is formed between the blocking portion and theprotruding rib, one end of the sealing component is located in theposition-limiting space, and the sealing component abuts against thefirst supporting portion.
 8. The control valve according to claim 6,wherein the valve body component further comprises a bottom wall and acover, the cover is fixedly connected to the side wall portion, thevalve body component further comprises a first valve core supportingportion which protrudes from the bottom wall, the cover comprise asecond valve core supporting portion which protrudes from an end surfaceof the cover, a part of the valve core component is inserted into thefirst valve core supporting portion, another part of the valve corecomponent is inserted into the second valve core supporting portion, andthe valve core component is rotatably supported on the first valve coresupporting portion and the second valve core supporting portion.
 9. Thecontrol valve according to claim 1, wherein the elastic pad is made ofrubber material, the valve body component is made of aluminum materialor made of plastic material by injection molding, the valve corecomponent is made of plastic material by injection molding, the sealingmember is made of Teflon, and the elastic pad is fixed to the sealingmember by adhesion.
 10. The control valve according to claim 9, whereinthe elastic pad has a first recessed groove and a second recessedgroove, the first recessed groove extends axially, the second recessedgroove is arranged circumferentially, the second recessed groove islocated on at least one side of the elastic pad, and the first recessedgroove is in communication with the second recessed groove.
 11. Thecontrol valve according to claim 2, wherein the elastic pad has a firstrecessed groove which extends axially, the valve body component has aprotruding rib that protrudes from the side wall portion, the protrudingrib is inserted into the first recessed groove, and a height of theprotruding rib protruding from the side wall portion is less than adepth of the first recessed groove.
 12. The control valve according toclaim 3, wherein the elastic pad has a first recessed groove whichextends axially, the valve body component has a protruding rib thatprotrudes from the side wall portion, the protruding rib is insertedinto the first recessed groove, and a height of the protruding ribprotruding from the side wall portion is less than a depth of the firstrecessed groove.
 13. The control valve according to claim 4, wherein theelastic pad has a first recessed groove which extends axially, the valvebody component has a protruding rib that protrudes from the side wallportion, the protruding rib is inserted into the first recessed groove,and a height of the protruding rib protruding from the side wall portionis less than a depth of the first recessed groove.
 14. The control valveaccording to claim 2, wherein the elastic pad is made of rubbermaterial, the valve body component is made of aluminum material or madeof plastic material by injection molding, the valve core component ismade of plastic material by injection molding, the sealing member ismade of Teflon, and the elastic pad is fixed to the sealing member byadhesion.
 15. The control valve according to claim 3, wherein theelastic pad is made of rubber material, the valve body component is madeof aluminum material or made of plastic material by injection molding,the valve core component is made of plastic material by injectionmolding, the sealing member is made of Teflon, and the elastic pad isfixed to the sealing member by adhesion.
 16. The control valve accordingto claim 4, wherein the elastic pad is made of rubber material, thevalve body component is made of aluminum material or made of plasticmaterial by injection molding, the valve core component is made ofplastic material by injection molding, the sealing member is made ofTeflon, and the elastic pad is fixed to the sealing member by adhesion.17. The control valve according to claim 5, wherein the elastic pad ismade of rubber material, the valve body component is made of aluminummaterial or made of plastic material by injection molding, the valvecore component is made of plastic material by injection molding, thesealing member is made of Teflon, and the elastic pad is fixed to thesealing member by adhesion.
 18. The control valve according to claim 6,wherein the elastic pad is made of rubber material, the valve bodycomponent is made of aluminum material or made of plastic material byinjection molding, the valve core component is made of plastic materialby injection molding, the sealing member is made of Teflon, and theelastic pad is fixed to the sealing member by adhesion.
 19. The controlvalve according to claim 7, wherein the elastic pad is made of rubbermaterial, the valve body component is made of aluminum material or madeof plastic material by injection molding, the valve core component ismade of plastic material by injection molding, the sealing member ismade of Teflon, and the elastic pad is fixed to the sealing member byadhesion.
 20. The control valve according to claim 8, wherein theelastic pad is made of rubber material, the valve body component is madeof aluminum material or made of plastic material by injection molding,the valve core component is made of plastic material by injectionmolding, the sealing member is made of Teflon, and the elastic pad isfixed to the sealing member by adhesion.